OSI

580 products

580 products
Farpoint dew shield for Celestron 14-inch SCT, product overview
Farpoint Dew Shield - Orion Starseeker 150 Mak
$32.00
Sold Out
Lumicon 2-inch single polarizing filter for telescope eyepiece glare reduction
Lumicon 2 Inch Single Polarizing Filter
$49.50
Sold Out
Lumicon 2-inch SCT rear cell comet filter for enhancing comet contrast
Lumicon 2 Inch SCT Rear Cell Comet Filter
$242.00
Sold Out
Lumicon 2-inch Hydrogen-β filter for emission nebula observing
Lumicon 2 Inch Hydrogen-β Filter
$242.00
Sold Out
Lumicon 2-inch SCT rear cell UHC filter for enhanced nebula contrast
Lumicon 2 Inch SCT Rear Cell UHC Filter
$302.50
Sold Out
Lumicon 2-inch SCT rear cell deep sky filter for visual observing
Lumicon 2 Inch SCT Rear Cell Deep Sky Filter
$242.00
Sold Out
Lumicon 72mm minus violet filter for reducing chromatic aberration
Lumicon 72mm Minus Violet Filter
$143.00
Sold Out
Lumicon 58mm minus violet filter for reducing chromatic aberration
Lumicon 58mm Minus Violet Filter
$96.80
Sold Out
Lumicon 2-inch #15 yellow-orange color filter for telescope eyepieces
Lumicon 2 Inch #15 Yellow-Orange Color Filter
$73.70
Sold Out
Lumicon 2-inch #8 light yellow color filter for telescope eyepieces
Lumicon 2 Inch #8 Light Yellow Color Filter
$56.10
Sold Out
Lumicon 72mm Night Sky Hydrogen-alpha narrowband filter, view 1 of 2
Lumicon 72mm Night Sky Hydrogen-alpha narrowband filter, view 2 of 2
Lumicon 72mm Night Sky Hydrogen-α Filter
$319.28
Sold Out
Lumicon 2-inch deep sky filter for visual nebula observation under light pollution
Lumicon 2 Inch Deep Sky Filter
$242.00
Sold Out
JMI MotoFocus+ drive for Celestron CPC 800 telescope
JMI MotoFocus+ Celestron CPC 800
$240.90
Sold Out
JMI MotoFocus+ Takahashi 2.7 Inch Focuser
JMI MotoFocus+ Takahashi 2.7 Inch Focuser
$240.90
Sold Out
JMI MotoFocus+ Sky-Watcher Maksutov Focuser
JMI MotoFocus+ Sky-Watcher Maksutov Focuser
$240.90
Sold Out
JMI MotoFocus+ motor focuser drive for iOptron MC90 — view 1 of 2
JMI MotoFocus+ motor focuser drive for iOptron MC90 — view 2 of 2
JMI MotoFocus+ iOptron MC90
$240.90
Sold Out
JMI MotoFocus+ motor focuser drive for Tele Vue refractors
JMI MotoFocus+ Tele Vue Refractors
$240.90
Farpoint Celestron CGE knob and adjustment wrench kit, adjustment wrench
Farpoint Celestron CGE knob and adjustment wrench kit, replacement knobs
Farpoint Celestron CGE Knob/Adjustment Wrench Kit
$72.60
Sold Out
JMI carrying case for Takahashi EPSILON 180
JMI Carrying Case Takahashi EPSILON 180
$645.70
Farpoint 6 inch 57.3 Series universal dovetail plate (Radian Bar) — black anodized light-weighted D-size dovetail bar with engraved inch scale
Farpoint 6 Inch 57.3 Series Universal Dovetail Plate (Radian Bar)
$0.00
Farpoint dew shield for Celestron 14-inch SCT, product overview
Farpoint Dew Shield - Orion 190 Mak-Newt
$44.00
Farpoint dew shield for Celestron 14-inch SCT, product overview
Farpoint Dew Shield - Orion 180 Mak
$38.00
Tripod Mounting Post for Universal Binocular Mount (UBM) (6795848253593)
Tripod Mounting Post for Universal Binocular Metric 10 Thread
$29.00